#!/bin/sh

set -eu
file="$1"
str='Current'
interval=5
ding="/usr/share/bzflag/pop.wav"

last="$(grep "$str" "$file")"
while sleep $interval
do
	cur="$(grep "$str" "$file")"
	test "$cur" != "$last" && {
		mpv "$ding"
		date
	}
	last="$cur"
done